Dianrui 12V Bus Bar Power Distribution Block 250A 1/4" x 6 Studs + #8 x 10 Screw Terminals Busbar for Marine, Automotive, and Solar Wiring (Pair, Red & Black)

Very clean and straightforward and it gives you options for larger and smaller gauge wires. Inexpensive and it really does the trick.

This worked perfectly on my utv for connecting a sound bar and an mp3 player

Works as advertised

Overall, the bus bars seem to be of decent quality. The included terminals are the cheapest, lightest terminals I have ever seen.

Easy to install

as advertised; works well.

Nice cover for terminals with all stainless hardware fir terminals.

These bus bars are smaller than I expected. I missed that they use M6 (¼ inch) studs, not M8 or M10 as is more commonly used.The clear plastic top is a nice touch. It is held on my two plastic nuts. The top is composed of three pieces. The main part and two sleeves. One sleeve popped out the first time I dropped a top. It wasn’t a big deal because I quickly found it and it slipped right back into place. Keep it in mind though if you are working in a tight space.The included M6 lugs are nice and heavy. I filed the top of one of them, and under the tin plating, the metal is copper colored. The lugs have a nice heft to them. I believe they are made primarily from copper.The bus bars are reasonably thick for the stated current. I used a file on one of them, under the chrome, the metal is copper colored. I not sure it is pure copper though because the metal was hard to file.